Common difference between versions and between Fully Registered and Shareware.
Shareware:
Cannot do AutoScan
Won't display text for all fault codes
No Basic Settings (so no TBA, Xenon levelling, etc or checking timing on TDI's)
No Adaptation Saving (so no changing of locking/lights/horn behavior)
No Output Tests
No Tech Support from Ross-Tech
Limitations of 311 and 409 even if Fully Registered:
No Generic
OBD-II
Won't work with CAN-Bus vehicles
Fewer fault code definitions and label files
No built-in Activation (you'll be limited to a single PC)
No Advanced Measuring Blocks
No Acceleration Measurement
No Automated Service Reset
No Guided Readiness Generation